package rabbitmq.simple;

import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;
import rabbitmq.constant.Constants;

import java.io.IOException;
import java.util.concurrent.TimeoutException;

public class ProducerDemo {
    public static void main(String[] args) throws IOException, TimeoutException {
        // 1. 建立连接
        ConnectionFactory connectionFactory = new ConnectionFactory();
        connectionFactory.setHost(Constants.HOST);
        connectionFactory.setPort(Constants.PORT);
        connectionFactory.setUsername(Constants.USER_NAME);
        connectionFactory.setPassword(Constants.PASSWORD);
        connectionFactory.setVirtualHost(Constants.VIRTUAL_HOST);
        Connection connection = connectionFactory.newConnection();

        // 2. 开启信道
        /*
         * queueDeclare(String queue, boolean durable, boolean exclusive, boolean autoDelete,
         *                                  Map<String, Object> arguments)
         *  参数说明:
         *  queue: 队列名称
         *  durable: 可持久化
         *  exclusive: 是否独占
         *  autoDelete: 是否自动删除
         *  arguments: 参数
         */
        Channel channel = connection.createChannel();

        // 3. 声明交换机(使用内置的)

        // 4. 声明队列
        channel.queueDeclare("hello", true, false, false, null);

        // 5. 发送消息
        /*
         * basicPublish(String exchange, String routingKey, BasicProperties props, byte[] body)
         * 参数说明:
         * exchange: 交换机名称
         * routingKey: 内置交换机, routingkey和队列名称保持一致
         * props: 属性配置
         * body: 消息
         */
        for (int i = 0; i < 10; i ++) {
            String msg = "hello rabbitmq!!!" + i;
            channel.basicPublish("", "hello", null, msg.getBytes());
        }
        System.out.println("消息发送成功");

        // 6. 资源释放
        channel.close();
        connection.close();
    }
}
